Cool Worlds

The Cool Worlds Lab just announced the discovery of the first transiting Jupiter-analog outside the Solar System, named "Kepler-167e". The transit method has been incredibly successful at finding exoplanets, with thousands now known thanks to NASA's Kepler Mission. But, planets on wide orbits, like Jupiter, are very tricky to find with this technique. Prof Kipping explains how his team overcame these obstacles to make this important discovery, opening the door to learning about alien Jupiters in much more detail. ::More about this Video:: ► Kipping et al. (2016), "A Transiting Jupiter Analog": https://arxiv.org/abs/1603.00042 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk

The Cool Worlds Lab is trying to find the first exomoon, a moon around a planet outside the Solar System. But, exomoons have been eluding us for a few years now. So why are they so hard to find and what do we know so far? Get up to date with the latest limits and prospects for detection. You can find the latest paper on constraints on exomoons at ::More about this Video:: ► Hunt for Exomoons with Kepler (HEK) Project website: www.exomoon.org ► HEK Project Twitter feed https://twitter.com/hek_project ► Kipping et al. (2012), "The Hunt for Exomoons with Kepler (HEK): I. Description of a New Observational Project": https://arxiv.org/abs/1201.0752 ► Kipping et al. (2013a), "The Hunt for Exomoons with Kepler (HEK): II. Analysis of Seven Viable Satellite-Hosting Planet Candidates": https://arxiv.org/abs/1301.1853 ► Kipping et al. (2013b), "The Hunt for Exomoons with Kepler (HEK): III. The First Search for an Exomoon around a Habitable-Zone Planet": https://arxiv.org/abs/1306.1530 ► Kipping et al. (2014), "The Hunt for Exomoons with Kepler (HEK): IV. A Search for Moons around Eight M-Dwarfs" https://arxiv.org/abs/1401.1210 ► Kipping et al. (2015), "The Hunt for Exomoons with Kepler (HEK): V. A Survey of 41 Planetary Candidates for Exomoons": https://arxiv.org/abs/1503.05555 ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

How common are planets like the Earth around other stars? This is a question humanity has been asking since the dawn of civilization, ultimately feeding into the question as to whether we are alone in the Universe? Astronomers are on a quest to calculate "eta-Earth", the fraction of stars hosting Earth-like planets. Thanks to NASA's Kepler Mission, we have recently begun to answer this question. Prof Kipping gives a quick run down of the latest estimates. ::More about this Video:: ► NASA's Kepler Mission homepage: https://kepler.nasa.gov ► Foreman-Mackey et al. (2014), "Exoplanet population inference and the abundance of Earth analogs from noisy, incomplete catalogs": http://arxiv.org/abs/1406.3020 ► Dressing & Charbonneau (2015), "The Occurrence of Potentially Habitable Planets Orbiting M Dwarfs Estimated from the Full Kepler Dataset and an Empirical Measurement of the Detection Sensitivity": http://arxiv.org/abs/1501.01623 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

We recently announced the discovery of the first Jupiter-like planet seen to transit its star. Thanks to all of you who watched our last video (link below!). There were some great questions posted in the comments and elsewhere, so in this video the discovered, Prof Kipping, answers your questions directly! ::More about this Video:: ► Our video announcing the discovery of Kepler-167e: https://youtu.be/ZTKVC2zBElA ► Kipping et al. (2016), "A Transiting Jupiter Analog": https://arxiv.org/abs/1603.00042 ► Centauri Dreams blog article: http://www.centauri-dreams.org/?p=35135 ► Bryan et al. (2016), "Statistics of Long Period Gas Giant Planets in Known Planetary Systems": http://arxiv.org/abs/1601.07595 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Answers to your questions on our recent Earth Twins (https://youtu.be/1eJnZncyAyM) and Exomoons (https://youtu.be/S3VQ0PdoR3M) videos. Sorry for the poor sound on this one, new camera setup caused some issues but should be fixed next time! ::More about this Video:: ► "Where are the Exomoons?" Cool Worlds video: https://youtu.be/S3VQ0PdoR3M ► "How Unique is the Earth?" Cool Worlds video: https://youtu.be/1eJnZncyAyM ► Kipping et al. (2015), "The Hunt for Exomoons with Kepler (HEK): V. A Survey of 41 Planetary Candidates for Exomoons": http://arxiv.org/abs/1503.05555 ► Canup & Ward (2006), "A common mass scaling for satellite systems of gaseous planets": http://www.nature.com/nature/journal/v441/n7095/full/nature04860.html ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

NSF Graduate Fellow Alex Teachey of the Cool Worlds Lab explains our new paper which devises a method to cloak entire planets from extraterrestrial civilizations! This was a really fun little paper which started out from the idea of how to broadcast or signal our presence, but as we worked on it we realized it could also be used a cloaking device too. As always, ask us your questions in the comments below and we'll get back to you! ::More about this Video:: ► Kipping & Teachey (2016): "A Cloaking Device for Transiting Planets" http://arxiv.org/abs/1603.08928 ► BBC article on Stephen Hawking's comments about avoiding alien contact: http://news.bbc.co.uk/2/hi/8642558.stm ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

One branch of statistics, called Bayesian statistics, is becoming increasingly important in detecting new planets. Emily Sandford, a second-year graduate student with the Cool Worlds Lab at Columbia, explains our new paper and the concept of Bayesian priors, hopefully providing astronomers the tools we need to analyze new discoveries! ::More about this Video:: ► Kipping & Sandford (2016), "Observational biases for transiting planets": http://arxiv.org/abs/1603.05662 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Can we explain how Superman can fly, or at least jump really high, using science? Professor Kipping explains the limits of how high an alien like Superman could jump on the Earth, using what we know about exoplanets to date. If you like these slightly different types of videos from our channel, let us know! ::More about this Video:: ► Rogers (2015), "Most 1.6 Earth-Radius Planets are not Rocky": http://arxiv.org/abs/1407.4457 ► Zeng & Sasselov (2015), "Mass-Radius Relation for Rocky Planets based on PREM": http://arxiv.org/abs/1512.08827 ► Militzer et al. (2008), "A Massive Core in Jupiter Predicted From First-Principles Simulations": http://arxiv.org/abs/0807.4264 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

We've been overwhelmed by the huge numbers of views, likes and questions on our "Cloaking Device" video! Alex responds to a few of your questions, please keep commenting and sharing! ::More about this Video:: ► "A Cloaking Device for Transiting Planets" Cool Worlds video: https://youtu.be/z1Pqqf_6J9w ► Kipping & Teachey (2016): "A Cloaking Device for Transiting Planets" http://arxiv.org/abs/1603.08928 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Is there a way to naturally classify the different types of planets in the Universe? Two of the most fundamental properties of any object are its mass and size and generally one expects size to increase as we add more mass. The relationship between size and mass itself changes though at certain points, and this offers a clear way to classify worlds. Graduate student Jingjing Chen of the Cool Worlds Lab discusses one component of her new paper which does just this, classifying planets based off their mass and size and concluding that just four broad categories of planets explain the data. ::More about this Video:: ► Chen & Kipping (2016), "Probabilistic Forecasting of the Masses and Radii of Other Worlds": http://arxiv.org/abs/1603.08614 ► "Forecaster" open-source software package: https://github.com/chenjj2/forecaster ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Would you like to help astronomers hunt for planets? Dr Marc Kuchner of NASA, principal investigator of the DiskDetective.org project, visited the Cool Worlds Lab and explains how you can become involved in a real planet hunting program online at DiskDetective.org. ::More about this Video:: ► Disk Detective website: www.DiskDetective.org ► Zooniverse website: https://www.zooniverse.org ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Can we use science to explain the seasons and long winters in Game of Thrones? In GoT, based off George R. R. Martin's book series A Song of Ice and Fire, the seasons can last many years and their lengths vary unpredictable to even the Maesters. Astronomers are of course huge fans of science fiction and fantasy stories and have even come up with a way to explain how Westeros could experience such wild seasons. Prof Kipping explains how it works! ::More about this Video:: ► Kostov et al. (2013), "Winter is Coming": http://arxiv.org/abs/1304.0445 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Proxima Centauri is our nearest star but we still don't know whether it has any planets. Prof Kipping discusses our planet hunting campaign using the space telescope MOST and gives you the latest news. ::More about this Video:: ► Gillon et al. (2016), "Temperate Earth-sized planets transiting a nearby ultracool dwarf star": http://www.nature.com/nature/journal/vaop/ncurrent/full/nature17448.html ► Muirhead at al. (2012), "Characterizing the Cool KOIs III. KOI-961: A Small Star with Large Proper Motion and Three Small Planets": http://arxiv.org/abs/1201.2189 ► MOST telescope homepage: http://most.astro.ubc.ca ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Cool Worlds Lab guest Dr Sarah Ballard from MIT explains how observing dead stars (white dwarfs) can reveal the makeup of exoplanets and even exoplanetesimals! Be sure to follow Sarah on Twitter @hubbahubble and check out her website at http://www.drsarahballard.com. ::More about this Video:: ► Farihi et al. (2013), "Evidence for Water in the Rocky Debris of a Disrupted Extrasolar Minor Planet": http://arxiv.org/abs/1310.3269 ► Xu et al. (2014), "Elemental Compositions of Two Extrasolar Rocky Planetesimals": http://arxiv.org/abs/1401.4252 ► Vanderburg et al. (2015), "A disintegrating minor planet transiting a white dwarf": http://arxiv.org/abs/1510.06387 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Answers to your questions by Prof David Kipping from our "Proxima Planet Hunt" and "Polluted Dead Stars" videos (links below)! Thanks to all of you who posted questions, keep 'em coming, we love interacting with you all! ::More about this Video:: ► "Proxima Planet Hunt" video: https://youtu.be/z5LVcfzRDI8 ► "Polluted Dead Stars" video: https://youtu.be/MAeqIQd6BMM ► Dressing & Charbonneau (2015), "The Occurrence of Potentially Habitable Planets Orbiting M Dwarfs Estimated from the Full Kepler Dataset and an Empirical Measurement of the Detection Sensitivity": http://arxiv.org/abs/1501.01623 ► Veras (2015), "Post-main-sequence planetary system evolution": http://arxiv.org/abs/1601.05419 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

There have been two scientific revolutions involving a "Kepler"- one 400 years ago and one on-going! Prof Kipping explains both and why NASA's Kepler Mission will go down in the history books as transformative. ::More about this Video:: ► NASA's Kepler Mission website: http://kepler.nasa.gov ► Burke et al. (2015), "Terrestrial Planet Occurrence Rates for the Kepler GK Dwarf Sample": http://arxiv.org/abs/1506.04175 ► Doyle et al. (2011), "Kepler-16: A Transiting Circumbinary Planet": http://arxiv.org/abs/1109.3432 ► Johansen et al. (2012), "Can planetary instability explain the Kepler dichotomy?": http://arxiv.org/abs/1206.6898 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Prof Jason Wright from Penn State explains why Tabby's Star has become known as the most mysterious star in the galaxy and how you can help him and Tabby Boyajian solve this mystery. To contribute to their Kickstarter campaign, go to https://www.kickstarter.com/projects/608159144/the-most-mysterious-star-in-the-galaxy right now! ::More about this Video:: ► Kickstarter page: https://www.kickstarter.com/projects/608159144/the-most-mysterious-star-in-the-galaxy ► Boyajian et al. (2016), "Planet Hunters X. KIC 8462852 - Where's the Flux?": http://arxiv.org/abs/1509.03622 ► Wright et al. (2016), "The Ĝ Search for Extraterrestrial Civilizations with Large Energy Supplies. IV. The Signatures and Information Content of Transiting Megastructures": http://arxiv.org/abs/1510.04606 ► Prof Wright's blog, AstroWright: http://sites.psu.edu/astrowright/ ► Dr Tabetha Boyajian's TED talk: https://www.ted.com/talks/tabetha_boyajian_the_most_mysterious_star_in_the_universe ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

A remarkable method in astronomy uses transiting exoplanets to measure the average density of the parent star. By comparing this value to other ways of measuring a star's density, astronomers can learn more about the planet, such as its orbital shape. Prof Kipping breaks down how this is possible in a simplified way and explains how "Asterodensity Profiling" is becoming an important tool in astronomy. ::More about this Video:: ► Cartoon list of Asterodensity Profiling effects: https://www.cfa.harvard.edu/~dkipping/AP_Cheat_Sheet.pdf ► Kipping (2014), "Characterizing Distant Worlds with Asterodensity Profiling": http://arxiv.org/abs/1311.1170 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

The Juno spacecraft just arrived at Jupiter! Prof Kipping explains what Juno is all about, how NASA got the spacecraft safely into orbit and how this connects to exoplanetary science. ::More about this Video:: ► NASA Juno homepage: https://www.nasa.gov/mission_pages/juno/main/index.html ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

TrES-2b is the darkest known exoplanet ever detected, reflecting less light than black paint. Prof Kipping, who helped discover the extreme low reflectivity back in 2011, explains how it was found, why this object was chosen for analysis in the first place and what physically could be causing the planet to be so dark. ::More about this Video:: ► O'Donovan et al. (2006), "TrES-2: The First Transiting Planet in the Kepler Field": http://arxiv.org/abs/astro-ph/0609335 ► Kipping & Spiegel (2011), "Detection of visible light from the darkest world": http://arxiv.org/abs/1108.2297 ► BBC News article: http://www.bbc.com/news/science-environment-14476411 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

The transit method of finding exoplanets is easier for big planets than small planets. But new work from the Cool Worlds Lab shows that transits disfavor the detection of small, Earth-sized planets even more than previously realized. Emily Sandford, a third-year graduate student with the Cool Worlds Lab at Columbia, explains our new paper which derives these biases, allowing astronomers to correct for these effects when figuring out how many Earths there really are. ::More about this Video:: ► Kipping & Sandford (2016), "Observational biases for transiting planets": http://arxiv.org/abs/1603.05662 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Alien megastructures are back in the headlines after some new research published last week. It has been claimed that Tabby's Star is confirmed to be steadily dimming, which is completely unexpected behavior for a star. Prof Kipping explains what we know (and don't know) about this mysterious star and what astronomers really mean by "alien megastructures". ::More about this Video:: ► Montet & Simon (2016), "KIC 8462852 Faded Throughout the Kepler Mission": http://arxiv.org/abs/1608.01316 ► Schaefer (2016), "KIC 8462852 Faded at an Average Rate of 0.165+-0.013 Magnitudes Per Century From 1890 To 1989": http://arxiv.org/abs/1601.03256 ► Boyajian et al. (2016), "Planet Hunters X. KIC 8462852 - Where's the Flux?": https://arxiv.org/abs/1509.03622 ► Arnold (2005), "Transit Lightcurve Signatures of Artificial Objects": http://arxiv.org/abs/astro-ph/0503580 ► Kipping & Teachey (2016), "A Cloaking Device for Transiting Planets": http://arxiv.org/abs/1603.08928 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Our own cool world is warming up. Dr Gavin Schmidt, Director of the NASA Goddard Institute for Space Studies (GISS), visited the Cool Worlds Lab and explains how NASA actually measures these climatic changes and the modeling used to understand what is responsible for them. ::More about this Video:: ► NASA GISS Surface Temperature Analysis software and data sources: http://data.giss.nasa.gov/gistemp/ ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Dr Guillem Anglada gives the first remote Cool Worlds video to explain the very special discovery announced today by his team - a planet orbiting our nearest star. Dr Guillem Anglada walks you through the journey of discovery and what this detection means to him. Make sure you check out the Pale Red Project website below! ::More about this Video:: ► Pale Red Project: www.palereddot.org ► Anglada-Escude et al. (2016), "A terrestrial planet candidate in a temperate orbit around Proxima Centauri": https://arxiv.org/abs/1609.03449 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Dr Guillem Anglada and the Pale Red Dot project team announced today the discovery of a planet orbiting our nearest star, Proxima Centauri! Prof Kipping provides an update on the search as to whether "Proxima b" also is seen to transit its star our the Cool Worlds Lab MOST data + a discussion of habitability and how to reach this planet! ::More about this Video:: ► MOST telescope homepage: http://most.astro.ubc.ca ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Astrobiology an exciting new field studying how life begins and the conditions needed both on Earth and elsewhere in the cosmos. Columbia's Director of Astrobiology, Dr Caleb Scharf, dropped into the Cool Worlds Lab to tell us about his new paper which created a "Drake Equation" for abiogenesis. Whilst we can only guess at many of the factors in the equation right now, it provides a framework for tackling this problem going forward. ::More about this Video:: ► The paper by Scharf & Cronin (2016), "Quantifying the Origins of Life on a Planetary Scale": https://arxiv.org/abs/1511.02549 ► Drake Equation explained on the SETI website: http://www.seti.org/drakeequation ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Thanks for all of your great comments and questions on our last two Proxima b videos! Here's a quick video covering some of the most common questions about Proxima b, such as: Is it tidally locked? Can we image it with Hubble? Can we take a photo with a flyby spaceship? ::More about this Video:: ► "Discovery of a Planet around our Nearest Star: Proxima b" Cool Worlds video by Dr Guillem Anglada: https://youtu.be/59ClESB1AqA ► "Proxima b: Transits, Habitability & How to Get There!" Cool Worlds video by Prof Kipping: https://youtu.be/tcc635lNRwY ► Video of zonal winds on a tidally locked planet taken from Merlis & Schneider (2010), "Atmospheric dynamics of Earth-like tidally locked aquaplanets": https://arxiv.org/abs/1001.5117 ► Leconte et al. (2015), "Asynchronous rotation of Earth-mass planets in the habitable zone of lower-mass stars": http://science.sciencemag.org/content/347/6222/632 ► Kreidberg & Loeb (2016), "Prospects for Characterizing the Atmosphere of Proxima Centauri b": http://arxiv.org/abs/1608.07345 ► Proxima b flyby video by the Planetary Habitability Laboratory, University of Puerto Rico at Arecibo: http://phl.upr.edu/press-releases/proxb ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Dr Seth Shostak, Senior Astronomer of the SETI Institute, was at the New England Fall Astronomy Festival with me last week and I took the opportunity to ask him about the news reports of a SETI signal detected in Russia from the star HD 164595. Dr Shostak explains why he's not convinced that we've just heard from another civilization. Apologies for the noisy background and typo on the title: Shostak not Shostack! ::More about this Video:: ► CNN News report: http://www.cnn.com/2016/08/31/europe/seti-signal-hd-164595-not-alien-civilization/ ► Big Picture Science: http://radio.seti.org/about_the_show ► SETI Institute: http://www.seti.org/ ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

NYU Professor of Physics, David Grier, dropped in to tell us about his team's amazing work building the world's first real life tractor beam. Just like Star Trek, he explains how their light beam pulls things toward it, how it works and how it could soon be used by NASA. ::More about this Video:: ► Prof David Grier's homepage: http://physics.nyu.edu/grierlab/ ► "Building Star Trek", Smithsonian Channel: http://www.smithsonianchannel.com/shows/building-star-trek/0/3436402 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Many exoplanets, including hot-Jupiters, have been observed to orbit the star the wrong way round, in retrograde orbits relative to the star's rotation. Prof. Smadar Naoz from UCLA visited the Cool Worlds Lab and explained why this is so odd and how we might explain these bizarre observation. ::More about this Video:: ► Prof Smadar Naoz homepage: http://www.astro.ucla.edu/~snaoz/ ► Simulation video of planet-planet scattering, credit Trent Schindler / National Science Foundation: http://www.berkeley.edu/news/media/releases/2005/04/13_planet.shtml ► Galaxy simulation (showing conservation of angular momentum) by Rob Crain (Leiden) and the Virgo Consortium, visualization by Rob Crain (Leiden) and Jim Geach (Hertfordshire) ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

For the last month, the Cool Worlds Lab has been working hard to finish our analysis of space-based data to solve whether the recently discovered exoplanet, Proxima b, transits its parent star or not. Prof Kipping explains the roller-coaster of emotions in trying to solve this mystery and reveals the final answer. ::More about this Video:: ► Kipping et al. (2016), "No Conclusive Evidence for Transits of Proxima b in MOST photometry": https://arxiv.org/abs/1609.08718 ► Proxima b data and results are available to download at https://github.com/CoolWorlds/Proxima ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Until recently, it was thought that travel through a wormhole, like that seen in the 2014 Christopher Nolan film Interstellar, was forbidden by the laws of physics. Prof Daniel Jafferis and his team have recently had a breakthrough and found a way to make it physically allowed. Prof Jafferis dropped by the Cool Worlds Lab to tell us about this fascinating idea. ::More about this Video:: ► Gao, Jafferis & Wall (2016), "Traversable Wormholes via a Double Trace Deformation": https://arxiv.org/abs/1608.05687 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

This week's guest video comes from Prof Catherine Espaillat from Boston University who came by the Cool Worlds Lab to talk about planet formation. Astronomers have been seeing disks of material around young stars, and even gaps in those disks implicating planets sweeping up the matter. Recently, the discovery of a planet inside one these gaps for the star LkCa 15 confirms that these gaps are indeed surely planets and the future of this relatively new research field looks set to blossom, as Catherine explains! ::More about this Video:: ► Prof Catherine Espaillat's group at BU: http://people.bu.edu/cce/ ► Kraus & Ireland (2011), "LkCa 15: A Young Exoplanet Caught at Formation?": https://arxiv.org/abs/1110.3808 ► Sallum et al. (2015), "Accreting Protoplanets in the LkCa 15 Transition Disk": https://arxiv.org/abs/1511.07456 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Does life's early emergence mean life starts easily? Growing evidence shows that life got started very quickly (within ~100 million years) after conditions became suitable for life on Earth (~3.7 billion years ago). This is often taken as evidence that life starts easily, but is this really true? Prof Kipping explains why things aren't as simple as they seem. ::More about this Video:: ► Nutman et al. 2016, "Rapid emergence of life shown by discovery of 3,700-million-year-old microbial structures": http://www.nature.com/nature/journal/v537/n7621/full/nature19355.html ► Allwood 2016, "Geology: Evidence of Life in Earth's Oldest Rocks": http://www.nature.com/nature/journal/v537/n7621/full/nature19429.html ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

We're looking forward to the new sci-fi film "Arrival", which explores the barriers to communicating with aliens even face to face. Astronomers really are trying to listen for alien communications, mostly using radio receivers but increasingly by looking for optical laser transmissions too. One of our wild ideas here at the Cool Worlds Lab is that optical SETI could try focussing these efforts to physically-motivated special moments in time to dramatically increase the survey efficiency. Prof Kipping pitches this new concept to all you Cool Worlders! ::More about this Video:: ► Kipping & Teachey (2016), "A Cloaking Device for Transiting Planets": https://arxiv.org/abs/1603.08928 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

As regular watchers of the channel may remember, this summer astronomers announced the discovery of a potentially Earth-like planet orbiting our nearest star, Proxima Centauri. Sadly, research at the Cool Worlds Lab was unable to find any evidence that Proxima b transits its star, which is a blow for those hoping for near-term characterization of its atmosphere. But! Dr Jayne Birkby comes to the rescue and explains here how an alternative technique should work if we can wait a few years! Thanks to Jayne for visiting the lab and giving us all some hope for Proxima! ::More about this Video:: ► Dr Jayne Birkby homepage: http://home.strw.leidenuniv.nl/~birkby/wordpress/ ► Snellen et al. (2010), "The orbital motion, absolute mass, and high-altitude winds of exoplanet HD209458b": https://arxiv.org/abs/1006.4364 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

It's been a while since our last Q&A so here is a catch up on some your great questions posted on the channel! First, we get into how the trade-off astronomers make between telescope size, time and number. Then, we turn to how to find life which started independently to us and whether we'd even recognize it. We are trying out a new intro and styling, let us know what you think! Thanks for watching! ::More about this Video:: ► "Does Life Start Easily?" Cool Worlds video: https://youtu.be/rtFy48i88A8 ► "How to Characterize Proxima b's Atmosphere" Cool Worlds video: https://youtu.be/zsKoBbY1-S4 ► Project Minerva: https://www.cfa.harvard.edu/minerva/ ► Shadow biosphere Davies et al. (2009), Signatures of a Shadow Biosphere: http://online.liebertpub.com/doi/abs/10.1089/ast.2008.0251 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Exciting new research from the Cool Worlds Lab has delved into the use of machine learning and artificial neural networks for astronomy. In new work from David Kipping & Chris Lam here at Columbia, we've shown how a machine can predict the presence of extra planets in known planetary systems using just a few pieces of information about the system. Chris Lam gives a neural network 101 and explains our implementation works. ::More about this Video:: ► Kipping & Lam 2016, "Transit Clairvoyance: Enhancing TESS follow-up using artificial neural networks": https://arxiv.org/abs/1611.04904 ► Tamayo et al. (2016), "A Machine Learns to Predict the Stability of Tightly Packed Planetary Systems": https://arxiv.org/abs/1610.05359 ► Graff et al. (2013), "SKYNET: an efficient and robust neural network training tool for machine learning in astronomy": https://arxiv.org/abs/1309.0790 ► Waldmann (2016), "Dreaming of atmospheres": https://arxiv.org/abs/1511.08339 ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ►http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

This week a plot showing the global sea ice over time went viral due to shockingly low levels, smashing previous records. The plot was so weird that we decided to check out the data for ourselves and see if it was legit. Indeed, we can reproduce this alarming plot and provide some links and scripts for any of you who want to go ahead and try yourselves. Here we get into why we think these kinds of weird observations may become more common in the future. ::More about this Video:: ► National Sea and Ice Data Center archive of sea ice extent data: https://nsidc.org/data/docs/noaa/g02135_seaice_index/ ► My Mathematica script used to generate a confirming plot: https://github.com/davidkipping/seaiceextent ► Two of the first tweets publicizing the viral plot, Zach Labe (https://twitter.com/ZLabe/status/798913080168095744) and Eric Holthaus (https://twitter.com/EricHolthaus/status/800067428419940352). ► Wipneus archive of plots: https://sites.google.com/site/arctischepinguin/home/sea-ice-extent-area/grf ► Eric Holthaus blog article about the viral plot: http://tinyletter.com/sciencebyericholthaus/letters/today-in-weather-climate-sea-ice-tipping-point-edition-monday-november-21th ► Guardian article on record Arctic temperatures: https://www.theguardian.com/environment/2016/nov/22/extraordinarily-hot-arctic-temperatures-alarm-scientists ► CNN article on record Arctic temperatures: http://www.cnn.com/2016/11/18/world/sea-ice-arctic-antarctic-lows/ ► Conrath at al. (1970), "The Infrared Interferometer Experiment on Nimbus 3": http://onlinelibrary.wiley.com/doi/10.1029/JC075i030p05831/abstract ► Gavin Schmidt explains "How we know that the Earth's climate is changing": https://youtu.be/mkT7IyUSjq0 ► Video background music by Nick Caville: https://www.youtube.com/watch?v=iv2WSDMBRxA ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorld

In 1855, Captain William Stephen Jacob authored a paper in the Monthly Notices of the Royal Astronomical Society claiming that a planet likely existed in the binary star system 70 Ophiuchi. Although his claim ended being wrong, it's pretty remarkable that someone was even thinking about doing this with scientific methods at the time! Here we get into Jacob's claim, what went wrong, and what legacy this has left us with. ::More about this Video:: ► Captain William S Jacob, "On Certain Anomalies Presented by the Binary Star 70 Ophiuchi": http://adsabs.harvard.edu/abs/1855MNRAS..15..228J ► Information compiled about Captain William Stephen Jacob and family by his living descendant, Kenneth Jacob: http://www.myjacobfamily.com/favershamjacobs/williamstephenjacob.htm ► Thomas See, "Researches on the orbit of 70 Ophiuchi, and on a periodic perturbation in the motion of the system arising from the action of an unseen body": http://adsabs.harvard.edu/abs/1896AJ.....16...17S ► Forest Ray Moulton, "The limits of temporary stability of satellite motion, with an application to the question of the existence of an unseen body in the binary system 70 Ophiuchi": http://adsabs.harvard.edu/abs/1899AJ.....20...33M ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

Get ready! On August 21st 2017, Americans will be treated to a rare total Solar eclipse. From coast to coast, everyone in the US should be able to see at least a partial eclipse and be within a day's drive of catching the total eclipse. Here's a quick rundown of what to expect, where to go and how to plan your trip. ::More about this Video:: ► The web app you can use to plan your trip (as shown in the video) is available at www.GreatAmericanEclipse.com ► NASA's page on the upcoming eclipse: http://eclipse.gsfc.nasa.gov/SEgoogle/SEgoogle2001/SE2017Aug21Tgoogle.html ► Where to buy your glasses from: https://www.greatamericaneclipse.com/store/ and http://www.eclipse2017.org/glasses_order.htm ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

To celebrate the release of Star Wars Rogue One this weekend, let's ask the question - could we detect the Death Star with our current telescopes? Remarkably astronomers have been thinking about the detectability of alien megastructures, such as the Death Star, for many years and we can apply some scientific thinking to get to the answer. ::More about this Video:: ► Companion video on Martin Archer's channel, "Is the Death Star a Star?": https://youtu.be/Q4CKSekJzxk ► Kipping & Teachey 2016, "A Cloaking Device for Transiting Planets": https://arxiv.org/abs/1603.08928 ► Cool Worlds video by Alex Teachey about our laser cloaking system: https://www.youtube.com/watch?v=z1Pqqf_6J9w ► Most recent results from exomoon hunting, Kipping et al. 2015, "The Hunt for Exomoons with Kepler (HEK): V. A Survey of 41 Planetary Candidates for Exomoons": https://arxiv.org/abs/1503.05555 ► Cool Worlds video update on the search for exomoons: https://www.youtube.com/watch?v=S3VQ0PdoR3M ► Freeman Dyson's original paper on Dyson Spheres, "Search for Artificial Stellar Sources of Infrared Radiation": http://science.sciencemag.org/content/131/3414/1667 ► Cool Worlds video explaining "What is an Alien Megastructure?": https://www.youtube.com/watch?v=tYHVCW3BkHU ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!